基于亲和力的探针(A f BPs)为药物-靶标相互作用的大规模化学计量学研究提供了强大的工具。然而,开发能够概括真正的药物-靶点参与的高质量探针可能是具有挑战性的。包含烷基重氮基团和化学易处理标签的“极简主义”光交联剂可以缓解此类挑战,但目前很少。本文中,我们开发了具有不同生物正交标签的新型含烷基重氮基的光交联剂。随后,它们被用来创建A f的套件基于GW841819X(BRD4的小分子抑制剂)的BP。通过在模拟天然药物与靶标相互作用的条件下进行的体外和原位研究,我们获得了关于标签如何影响探针性能的更好的见解。最后,基于SILAC的化学密码学研究导致发现了新型脱靶APEX1。进一步的研究表明,GW841819X与APEX1结合并在常氧条件下引起内源性DNMT1表达上调。
intramolecular Diels–Alder (IMDA) reaction efficiently accelerated by Schreiner's thiourea is reported, to build a functionalized cytochalasin scaffold (periconiasin series) for biological purposes. DFT calculation highlighted a unique multidentate cooperative hydrogen bonding in this catalysis. The deprotection end game afforded a collection of diverse structures and showed the peculiar reactivity of the
Synthesis of Five- and Six-Membered-Ring
Compounds by Environmentally Friendly Radical Cyclizations Using
Kolbe Electrolysis
作者:István Markó、Frédéric Lebreux、Ferdinando Buzzo
DOI:10.1055/s-0028-1083547
日期:——
Substituted carbocycles, tetrahydrofurans, and tetrahydropyrans can be efficiently obtained from omega-unsaturated carboxylic acids. Our methodology involves a Kolbe decarboxylation followed by in intramolecular radical cyclization and a radical-radical cross-coupling process.
The diastereoselective synthesis of the C17–C30 fragment of amphidinol3 (AM3) 1 was achieved from the enantio-enriched aldehyde 20, Weinreb amide 14 and 2-bromo-3-(trimethylsilyl)propene, which was used as a bifunctional conjunctive reagent. The absolute configuration of the stereogenic centers, in both aldehyde 20 and Weinreb amide 14, were efficiently controlled by using (+)-(R)-methyl-p-tolylsulfoxide